HESI RN
HESI RN CAT Exit Exam 1
1. The nurse is caring for a client who has a chest tube in place following a pneumothorax. The nurse notes that there is continuous bubbling in the water seal chamber of the chest tube drainage system. What action should the nurse take?
- A. Check for kinks in the tubing
- B. Notify the healthcare provider
- C. Replace the chest tube drainage system
- D. Reinforce the chest tube dressing
Correct answer: B
Rationale: The correct action for the nurse to take when observing continuous bubbling in the water seal chamber of the chest tube drainage system is to notify the healthcare provider. Continuous bubbling indicates a possible air leak, and the healthcare provider needs to be informed to assess the situation and take appropriate actions. Checking for kinks in the tubing (Choice A) may be done initially but is not the priority when continuous bubbling is present. Replacing the chest tube drainage system (Choice C) and reinforcing the chest tube dressing (Choice D) are not immediate actions needed in response to continuous bubbling in the water seal chamber.
2. The nurse is administering total parenteral nutrition (TPN) via a central line at 75 ml/hour to a client who had a bowel resection 4 days ago. Which laboratory finding requires the most immediate intervention by the nurse?
- A. Blood glucose of 140 mg/dL
- B. White blood cell count of 8000/mm³
- C. Serum potassium of 3.8 mEq/L
- D. Serum calcium of 7.8 mg/dL
Correct answer: D
Rationale: The correct answer is D. A serum calcium level of 7.8 mg/dL requires immediate intervention due to the risk of hypocalcemia. Hypocalcemia can lead to serious complications such as tetany, seizures, and cardiac arrhythmias. The other laboratory findings are within normal limits or slightly elevated, which do not pose an immediate threat to the client's health in this scenario.
3. A client with a history of seizures is being discharged with a prescription for phenytoin (Dilantin). Which instruction should the nurse provide this client?
- A. Take the medication with meals
- B. Avoid alcohol while taking this medication
- C. Limit sodium intake
- D. Take the medication at bedtime
Correct answer: B
Rationale: The correct instruction is to advise the client to avoid alcohol while taking phenytoin. Alcohol can interact with phenytoin, making it less effective and leading to increased side effects. Taking the medication with meals (Choice A) may help reduce gastrointestinal upset but is not the most crucial instruction for this medication. Limiting sodium intake (Choice C) is not directly related to phenytoin therapy. Taking the medication at bedtime (Choice D) is not a standard instruction for phenytoin administration.
4. The nurse is planning a health fair for young adults. Which action is most important for the nurse to implement?
- A. Provide educational materials on smoking cessation
- B. Offer blood pressure screening and monitoring
- C. Provide information on safe sex practices
- D. Discuss the importance of a healthy diet and exercise
Correct answer: B
Rationale: Offering blood pressure screening and monitoring is crucial for young adults as it helps in the early detection and management of hypertension, a condition that often goes unnoticed. High blood pressure can lead to serious health issues if left untreated. While education on smoking cessation, safe sex practices, healthy diet, and exercise are important aspects of overall health promotion, blood pressure screening takes precedence due to its immediate impact on health and the prevention of potential complications.
5. A client in acute renal failure has a serum potassium of 7.5 mEq/L. Based on this finding, the nurse should anticipate implementing which action?
- A. Administer an IV of normal saline rapidly and NPH insulin subcutaneously.
- B. Administer a retention enema of Kayexalate.
- C. Add 40 mEq of KCL (potassium chloride) to the present IV solution.
- D. Administer a lidocaine bolus IV push.
Correct answer: B
Rationale: In acute renal failure with a high serum potassium level, the priority intervention is to lower potassium levels to prevent complications like cardiac arrhythmias. Administering a retention enema of Kayexalate is the correct action as it helps lower high potassium levels by exchanging sodium for potassium in the intestines. Options A, C, and D are incorrect. Administering normal saline rapidly and NPH insulin or adding more potassium to the IV solution can further increase potassium levels, worsening the condition. Lidocaine is not indicated for treating hyperkalemia.
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